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Gerard Garcia commented on FLINK-7731: -------------------------------------- Thanks [~aljoscha], this solved the issue. I already tried to clear the state manually in the processing time timer FIRE_AND_PURGE but that was not enough. Does FIRE_AND_PURGE also clear the pending timers? > Trigger on GlobalWindow does not clean state completely > ------------------------------------------------------- > > Key: FLINK-7731 > URL: https://issues.apache.org/jira/browse/FLINK-7731 > Project: Flink > Issue Type: Bug > Components: Core, DataStream API > Affects Versions: 1.3.2 > Reporter: Gerard Garcia > Priority: Minor > > I have an operator that consists of: > CoGroup Datastream -> GlobalWindow -> CustomTrigger -> Apply function > The custom trigger fires and purges the elements after it has received the > expected number of elements (or when a timeout fires) from one of the streams > and the apply function merges the elements with the ones received from the > other stream. It appears that the state of the operator grows continuously so > it seems it never gets completely cleaned. > There is a discussion in > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Clean-GlobalWidnow-state-td15613.html > that suggests that it may be a bug. > This job reproduces the issue: > https://github.com/GerardGarcia/flink-global-window-growing-state -- This message was sent by Atlassian JIRA (v6.4.14#64029)